It reduces the manual load on the student to do a task on the computer. They just have to give voice commands to the application and it does the task. Earlier students have to open the separate applications one by one manually now it's directly available in a single place- just a step away from voice command.
Do you have to open Youtube/Gmail or listen to music or make a web search?? Just a single step away. Make a voice command with ZIRA she will do it for you.
Synced with the operating system it gives you a hybrid environment to learn. The students can check their google classroom, check their tasks, open Google calendar to check their assignments or search for a question in a single place.